Effects of needles with different diameters on the gastrointestinal emptying in mice

Objective  To observe the effects of needles with different diameters on the gastrointestinal function in mice. Methods  Eighteen Kunming mice were randomly divided into group of 0.25 mm needle, group of 0.35 mm needle, and control group. The acupoint of Zusanli (ST 36) was needled once a day for 5 days. The effects of needles with different diameters were observed by measuring the distance of the carbon moved in the intestine. Results  The distance of the carbon moved in the intestine was longer in the acupuncture group than in the control group (P<0.05), and it was longer in the group of 0.35 mm needle than in the group of 0.30 mm needle, there was no significant difference (P>0.05). Conclusion  Acupuncture treatment can enhance the peristalsis function of stomach and intestine in mice. The diameter of needle has no effect on the gastrointestinal function. Author: ZHANG Hao-lin (1986–), female, college degree.